Mobile App Development Company in the USA
PerfectionGeeks is a mobile app development company serving businesses across the United States. We design, build and launch iOS, Android and cross-platform apps, with backends, admin panels and integrations, and we build in US requirements such as HIPAA, CCPA and accessibility from the start. A typical business app costs $40,000–$120,000 and takes 3–6 months, with a fixed quote after discovery. With an office in Laguna Beach, California and engineering teams that overlap US working hours, you get a US point of contact and offshore pricing.
- Typical costs: $25,000–$60,000 for an MVP, $40,000–$120,000 for a business app, $120,000–$300,000+ for complex or enterprise apps.
- The same scope usually costs two to three times more with a US-only agency.
- Cross-platform (Flutter or React Native) suits most business apps; native suits heavy device or performance needs.
- HIPAA, CCPA, COPPA and accessibility shape architecture, so plan them in discovery, not before launch.
- You own the code, designs and IP, published under your own App Store and Google Play accounts.
Why US Companies Choose PerfectionGeeks
US hours, US contact
A California office and teams that overlap Eastern, Central and Pacific time for daily stand-ups and demos.
A full product team
Product managers, UX designers, iOS, Android and backend engineers, QA and DevOps on one team, not freelancers stitched together.
Compliance-aware engineering
HIPAA, CCPA and state privacy laws, COPPA, PCI DSS and WCAG accessibility are designed in from the first sprint.
Real prices up front
Cost ranges on this page and a fixed quote after discovery, with milestone payments.
App Store experience
Privacy labels, tracking permissions, account deletion and in-app purchase rules handled so launch doesn't stall in review.
You own everything
Source code, designs and IP assigned to your company under a clear contract and NDA.
Mobile App Development Services
Product Discovery and Strategy
Workshops to define users, features, platforms, integrations and compliance, ending with a roadmap and fixed quote.
UX/UI Design
Research, wireframes and polished designs that follow Apple and Google design guidelines, tested with real users.
iOS App Development
Native Swift and SwiftUI apps for iPhone, iPad and Apple Watch.
Android App Development
Native Kotlin and Jetpack Compose apps for phones, tablets and enterprise devices.
Cross-Platform Development
Flutter and React Native apps that share one codebase across iOS and Android.
AI-Powered Apps
Chat assistants, recommendations, document and image recognition and voice features using leading AI models.
Backend, APIs and Admin Panels
Scalable cloud backends, APIs, admin dashboards and integrations with your existing systems.
App Modernization and Rescue
Rebuild slow or outdated apps, fix crashes and take over stalled projects from other teams.
Maintenance and Growth
iOS and Android updates, monitoring, security patches and new features under a monthly plan.
Apps We Build for US Industries
| Industry | Typical apps | US-specific needs |
|---|---|---|
| Healthcare | Telehealth, patient portals, remote monitoring, care coordination | HIPAA safeguards, BAAs with vendors, EHR integration (FHIR) |
| Fintech and banking | Payments, lending, investing, budgeting | PCI DSS, KYC and AML checks, GLBA privacy, bank partner requirements |
| Retail and ecommerce | Shopping, loyalty, buy online and pick up in store | Payments, Apple Pay and Google Pay, sales tax, CCPA |
| Logistics and transport | Driver, delivery, fleet and tracking apps | Offline mode, GPS, ELD and Hours of Service where needed |
| Real estate | Property search, tenant and property management apps | MLS data feeds where licensed, e-signatures, payments |
| Education | Learning, tutoring and school communication apps | COPPA for under-13 users, FERPA for student records |
| On-demand services | Home services, delivery and booking marketplaces | Payments and payouts, background checks, ratings |
| Enterprise | Field service, sales, inspections and employee apps | SSO, mobile device management, audit logs, SOC 2-ready practices |
Native, Cross-Platform or Web App?
Roughly half of US smartphone users are on iPhone, more than in most other countries, so many US apps launch on iOS and Android together or iOS first. We recommend the option that fits your users and budget, not the one that bills the most hours.
| Option | Best for | Trade-offs | Relative cost |
|---|---|---|---|
| Cross-platform (Flutter, React Native) | Most business, consumer and MVP apps | Near-native performance; some device features need native code | Lowest for iOS and Android together |
| Native iOS and Android (Swift, Kotlin) | Heavy camera, AR, Bluetooth, background or performance needs | Two codebases to build and maintain | Highest |
| Progressive web app (PWA) | Simple tools, internal apps, content | Limited device access; weaker App Store presence | Lowest overall |
| Native for one platform first | Audiences mostly on iPhone or mostly on Android | The other platform comes later | Medium |
How Much Does Mobile App Development Cost in the USA?
With an experienced offshore team working US hours, a mobile app typically costs $25,000–$60,000 for an MVP, $40,000–$120,000 for a business app with backend and integrations, and $120,000–$300,000 or more for a complex or enterprise app. US-based agencies usually charge two to three times more for the same scope.
| App type | What's included | PerfectionGeeks | Typical US agency | Timeline |
|---|---|---|---|---|
| MVP | Core workflow, sign-in, basic admin, cross-platform iOS and Android | $25,000–$60,000 | $60,000–$150,000 | 2–4 months |
| Business app | Several user roles, payments, notifications, integrations, analytics | $40,000–$120,000 | $120,000–$300,000 | 3–6 months |
| Complex app | Marketplace, real-time features, video, AI, offline sync | $120,000–$300,000 | $300,000–$600,000+ | 6–10 months |
| Enterprise or regulated app | HIPAA, PCI DSS or SOC 2 needs, SSO, legacy integrations | $150,000+ | $400,000+ | 6–12 months, phased |
US Agency, Freelancer or Offshore Team?
| Option | Typical rate | Strengths | Risks |
|---|---|---|---|
| US agency | $120–$250 an hour | Same time zone, in-person workshops | Highest cost |
| US freelancers | $60–$150 an hour | Flexible, lower overhead | One person; no design, QA or DevOps backup |
| Offshore team with US overlap (PerfectionGeeks) | $25–$60 an hour | Full team, fixed price, US contact | Needs a reliable partner and clear communication |
| In-house team | Salaries plus 25–40% employer costs | Full control, long-term knowledge | Slow and expensive to hire |
US Compliance We Build In
We build the controls and documentation; your legal and compliance advisers confirm what applies to you.
| Requirement | Applies to | What the app needs |
|---|---|---|
| HIPAA | Apps handling protected health information for covered entities and their vendors | Encryption, access controls, audit logs, BAAs with cloud and vendors |
| CCPA/CPRA and other state privacy laws | Apps collecting personal data from residents of California and other states with privacy laws | Privacy notices, opt-outs, access and deletion requests, data minimisation |
| COPPA | Apps directed at children under 13 | Verifiable parental consent, limited data collection |
| PCI DSS | Apps taking card payments | Hosted payment fields or tokenisation through a processor, no raw card storage |
| Accessibility (ADA, WCAG 2.1/2.2) | All consumer apps, especially public-facing services | Screen reader support, contrast, text scaling, accessible forms |
| GLBA | Financial apps | Safeguards for customer financial data, privacy notices |
| FERPA | Education apps with student records | Controls on student data access and sharing |
| SOC 2 | B2B SaaS apps selling to enterprises | Security controls and evidence ready for an audit |
App Store and Google Play Readiness
Privacy disclosures
accurate App Store privacy labels and Google Play data safety forms.
Tracking permission
App Tracking Transparency prompts on iOS when you track users across apps for ads.
Account deletion
in-app account deletion, required by both stores for apps with sign-up.
In-app purchases
digital goods and subscriptions through Apple and Google billing, with web checkout links only where the current rules allow.
Review-ready builds
test accounts, demo data and review notes so Apple and Google reviewers can test every feature.
Our Mobile App Development Process
| Stage | What happens | Duration | What you get |
|---|---|---|---|
| 1. Discovery | Goals, users, features, platforms, integrations and compliance | 1–3 weeks | Roadmap, architecture, fixed quote |
| 2. UX/UI design | User flows, wireframes and designs tested with target users | 2–4 weeks | Clickable prototype |
| 3. Development | Apps, backend and integrations in 2-week sprints | 8–20 weeks | A test build and demo every 2 weeks |
| 4. QA and security testing | Functional, device, accessibility, performance and security testing | 2–4 weeks | Test reports, fixed issues |
| 5. Launch | App Store and Google Play submission under your accounts | 1–2 weeks | Live apps |
| 6. Support and growth | Monitoring, OS updates, analytics and new features | Ongoing | Monthly report |
How You Stay in Control
Starting from an idea? See our MVP development service. Need ongoing capacity after launch? Hire a dedicated development team.
A named US contact
and a project manager who works your hours.
Two-week sprints
with a working demo at the end of each.
Shared tools
Jira, Slack or Teams, Figma and your own GitHub or GitLab repositories.
Weekly written updates
on progress, budget, risks and next steps.
Milestone payments
tied to delivered, working software.
How We Keep Quality High
Code reviews
on every change and agreed coding standards.
Automated tests
for core flows, plus manual testing on real iPhones and Android devices.
Crash and performance monitoring
with Firebase Crashlytics or Sentry from the first test build.
Security testing
against the OWASP Mobile Application Security Verification Standard (MASVS).
Accessibility checks
with VoiceOver, TalkBack and WCAG guidelines.
Technology Stack
| Layer | Technologies |
|---|---|
| iOS | Swift, SwiftUI, Combine |
| Android | Kotlin, Jetpack Compose |
| Cross-platform | Flutter, React Native |
| Backend | Node.js, Python, Java, .NET, Go |
| Web and admin | React, Next.js |
| Databases | PostgreSQL, MongoDB, Firebase, Redis |
| AI | OpenAI, Anthropic Claude and Google Gemini APIs, Core ML, ML Kit |
| Payments | Stripe, Apple Pay, Google Pay, in-app purchases, RevenueCat |
| Cloud and DevOps | AWS, Google Cloud, Azure, Firebase, GitHub Actions, Fastlane |
| Monitoring | Firebase Crashlytics, Sentry, Mixpanel, Amplitude |
After Launch
After Launch
Who We Work With in the US
We work with clients across the US, including California, New York, Texas, Florida, Illinois and Washington, fully remote with optional in-person workshops.
| Client | What we typically build |
|---|---|
| Startups | MVPs and version-one apps built to raise funding and scale |
| Small and mid-size businesses | Customer apps, booking, loyalty and field apps connected to existing systems |
| Enterprises | Employee, field service and customer apps with SSO, security reviews and legacy integration |
| Healthcare organisations | HIPAA-ready telehealth, patient and care apps |
| Fintech companies | Payment, lending and investing apps with strong security |
| Agencies | White-label mobile development under their brand |
Get a Free Mobile App Estimate
Tell us about your app idea, your users and the systems it needs to connect to. Within 2 business days, we'll send a recommended scope, platform choice, timeline and cost range, all under an NDA.
Client Testimonials
Frequently Asked Questions
Get answers to the most common questions about mobile app development.